baber/WOPTO huggingface dataset:
Patent GB-582292-A (GB)
Title: Mechanical cleaning gear for fabric dust filters
IPC: B01D46/04
Filed: 1944-09-01
Abstract: 582,292. Air filters. HORSFALL, H. Sept. 1, 1944, No. 16646. [Class 8 (ii)] Mechanical cleaning gear for a tubular fabric dust filter 10, Fig, 1, comprises a laterally flexible beater element 16 held longitudinally of the filter and means for plucking the beater so as to flex it laterally and then release it to strike the filter wall. The beater, of which there may be a plurality, may comprise a non-elastic cord or flexible cane attached at its upper end by spring 16a to a rim 12 of a disc 11 to which is clipped the filter, and, attached at its lower end to a rim 13 of a dust receptacle 15. The plucking is effected by a rod 17 having spokes 19 connected by chains 20 to each of the beaters being partially rotated by a projection 22, Fig, 2, on a hand operated sliding rod 23 engaging a lever 21 and subsequent slipping of the lever past the projection. A nest of filters may be provided with mechanically operated gear synchronized with a shutter isolating each filter in turn from dust-laden air.
Patent GB-411296-A (GB)
Title: Improvements in or relating to means for ventilating engine-electric locomotives or motor coaches
IPC: B61C17/04
Filed: 1933-06-10
Abstract: 411,296. Ventilating vehicles. ARMSTRONG, WHITWORTH, & CO. (ENGINEERS), Ltd., SIR W. G., BECKETT, C. M., and TRUTCH, C. J. H., Thames House, Millbank, London. June 10, 1933, No. 16673. Addition to 390,215. [Class 137.] In a means for ventilating engine-electric locomotives, or motor coaches, of the kind described in the parent Specification, and in which a filtered air compartment is provided from which air is supplied to the engine or other apparatus, additional filtering apparatus is fitted to the portion of the apparatus for which especially dust free air is required. The air is drawn through comparatively coarse filters 8, 9 into the filtered air compartment 2 containing an electric generator 7, and is supplied through a fine filter 6 to the air intake 5 of the engine 4 in a compartment 1 formed by a partition 3.
Patent GB-477079-A (GB)
Title: Improvements in or connected with locks and latches
IPC: E05B55/00
Filed: 1937-06-16
Abstract: 477,079. Night latches. NICO MANUFACTURING CO., Ltd., and NIEDERDRENK, G. June 16, 1937, No. 16722. [Class 44] In a night latch the follower and bolt are so constructed that on releasing the actuating member and pressing the bolt in by hand a distance greater than the normal movement, the follower is adapted to automatically engage and hold the bolt withdrawn. The bolt 2 is normally withdrawn by the pin 15 attached to follower plate 14. If the bolt is pressed in by hand when the door is open to the position shown in Fig. 4, the spring 16 causes the pin 15 to come in front of the stop piece 6 and hold the latch withdrawn. The rotation of plate 14 is limited by the stop 18 and the projection 17. Normal actuation of the follower to withdraw the bolt will also release it. The construction shown is applicable to bolts used for right and left-handed latches, but if only one hand is required the slot 5a and stop 18 and projection 17 may be dispensed with, the rotation of follower being limited by a tooth or notch in one edge of slot 4. The cylinder lock acts on pin 15 through a lever arm. The bolt 2 is spring loaded by a spring 12 placed between the peg 11 on the bolt head and a fixed plate 10.
Patent GB-469797-A (GB)
Title: Improvements in or relating to the manufacture of asbestos rings
IPC: F16J15/20
Filed: 1936-01-31
Abstract: Asbestos rings for brake linings, clutches, and the like are made by knitting flat bands of asbestos, or mixed asbestos yarn, cutting the ends of the bands on the slant, bending into conical form and knitting the ends together, and pressing to give a flat seamless ring.  The asbestos is wetted as described in Specification 468,249, to enable it to be knitted.
Patent GB-351706-A (GB)
Title: Improvements in and relating to the introduction of viscous fluids into moulds and the like
IPC: B65B39/00
Filed: 1930-05-30
Abstract: 351,706. Moulding confectionery &c. LIEBETRUTH, F. W., 21, Hasstrasse, Nuremberg, Germany. May 30, 1930, No. 16734. [Class 87 (ii).] Relates to apparatus for filling viscous fluids into moulds &c. where they solidify or are sub-. jected to further treatment. According to the invention the fluid is extruded under constant high pressure from a space c in predetermined quantities, by opening a small passage f for given intervals of time by raising and lowering a pointed needle e. The space is kept filled through a supply tube a. The impact of the jet with the mould &c. on extrusion is said to cause solidification. The plate d in which the passage f is bored is removably fitted to the apparatus. Liquid pigments, viscous colours, oils, fats, waxes, soaps, cosmetic pastes, chocolate, cheese, &c. can be worked with the apparatus.
Patent GB-831148-A (GB)
Title: A new or improved scaffolding assembly
IPC: E04G3/18
Filed: 1956-05-30
Abstract: 831,148. Scaffolding. SCAFFOLDING (GREAT BRITAIN) Ltd., and RICHARDS, L. S. May 30, 1957 [May 30, 1956], No. 16765/56. Class 20(2) Scaffolding comprises a platform supporting tube 10 connected, by inclined bracing tubes 19, 20, to a parallel offset foot 15 which is clamped to the floor 27. A vertical tube 11 has a telescopic extension 12 which carries on its plate 14 a beam under construction. Horizontal planks 29 and bracing tubes connect this frame to a similar frame. A standard 23 supports a guard rail 25. Brace 19 and tube 10 may pivot around the tube 11 for storage. Tube 10 may alternatively be connected to the inner telescopic tube 12, in which case the brace 19 would be slidably connected by a fixable collar to tube 11. Specification 714,075 is referred to.
Patent GB-1240994-A (GB)
Title: Fluid discharge apparatus
Inventor: HEARN EDWIN ALLEN
IPC: B60S3/04
Filed: 1967-10-24
Abstract: 1,240,994. Spray producers. KINA ENG. Ltd. 24 Oct., 1968 [24 Oct., 1967; 8 April, 1968], Nos. 48285/67 and 16783/68. Heading B2F. Fluid discharge apparatus 10 comprises a hand grip, a discharge passage 46, inlet means for a first fluid 15 and at least one second fluid 16, 17, selecting means whereby the apparatus can discharge first fluid alone, second fluid alone or mixtures of first and second fluids, and an electrically operated pump for discharging the selected fluid or fluids through the discharge passage. The fluid may be drawn from supply 42 by pump 45 and the injection of additives from reservoirs 43 and 44 controlled by valves 47, 48 and metering devices 51. The outlet may terminate in a head comprising several jet and fan nozzles any of which may be aligned with the discharge passage by rotation of the head. The device may be in the form of a spray gun with controlling and selecting means mounted on the hand grip 10. The apparatus is useful in washing devices using water as fluid and soap and wax as additives.
Patent GB-318196-A (GB)
Title: Improvements in or relating to hand bags
IPC: A45C13/04
Filed: 1929-06-01
Abstract: 318,196. Keymann Ges., D. Aug. 30, 1928, [Convention date]. Handbags.-A handbag fitted with a hinged mouth-frame a, b, Figs. 1, 3, is provided with a pivoted handle k adapted to be turned down inside the bag when not required for use. The handle is shown as pivotally attached to the subsidiary mouth-frame i of an inner pocket, the frame i being mounted on the pivots c of the main frame. The parts a, b, of the main frame are of bowed formation, Fig. 3, to permit the passage of the handle when in use, the side members of the handle taking into notches n in a cover plate d attached to one of the parts. The inner mouth-frame i may be replaced by a suitable bar to which the pivots l are secured.
Patent GB-362870-A (GB)
Title: Improvements in or relating to grinding machines
IPC: B24B19/06
Filed: 1930-06-02
Abstract: 362,870. Grinding bearing-races &c. MINGANTI, G., 11, Via Ferrarese, Bologna, Italy. June 2, 1930, No. 17047. Convention date, June 4, 1929. Void [Published under Sect. 91. of the Acts]. [Class 60.] Rollers and the like, heating round holes, trueing. -In a grinding-machine particularly adapted for finishing the grooves of ball-bearing races the work carrier 1 is given a swinging movement about an axis 2 passing through the centre of the arcuate profile of a section of the ball race 5 the movement being controlled by a rotary piston 6, operated by fluid supplied by a pump 9. The pump delivery passes to a distributer 11 connected by linkage to the spindle 2 so as to effect the reversal of the piston at the ends of the required travel. The pump is of variable capacity and is adjusted to vary the speed of the work-head. The grinding wheel 4 is mounted in a support 15 carried by slide 16 the support being normally hooked to the slide by means of a lever 17 and positioned by a spring 18. Fine feed of the grinding wheel is effected by a differential screw 19 having one threaded portion engaging in an axially stationary nut 20 and another threaded portion of different pitch operating the slide 16. For automatic feed the screw 19 is rotated by a wheel 21 driven by pawls 22, 23 mounted on levers 24, 25 which are connected by linkage to the spindle of the head 1. The link 26 allows the rate of feed to be adjusted. A second toothed wheel 29 is provided with a projection 30 which is arranged to uncouple the hook of the lever 17 and allow the grinding-wheel slide to be returned by its spring. The screw 19 carries an adjustable cam which at a predetermined point may lift the pawls 22, 23 to stop the fine feed. This cam also allows the pawl 31 on the lever 25 to come into action on the wheel 29. Simultaneously with the stoppage of the grinding-wheel feed another cam 33 acts on a control device 34 to reduce the pump delivery and so decrease the speed of the work for the finishing operation. The nut 20 may be rotated by worm gearing 38 to allow the grinding wheel to be fed to compensate for wear.
Patent GB-1344752-A (GB)
Title: Process for the purification of hexachlorophene
IPC: C07C37/82
Filed: 1972-04-13
Abstract: 1344752 Purifying hexachlorophene L GIVAUDAN & CIE SA 13 April 1972 [13 April 1971] 17086/72 Heading C2C A process of removing 2,4,5-trichlorophenol from hexachlorophene comprises the step of treating a solution of hexachlorophene contaminated with 2,4,5-trichlorophenol with molecular sieves having a pore size greater than 7  and less than 10 . Solvents employed may be organic solvents or aqueous basic solutions having a pH insufficiently high to attack the molecular sieves. Examples are furnished.
Patent GB-1387386-A (GB)
Title: Protection circuits for transistor circuits
IPC: H02H3/087
Filed: 1973-04-10
Abstract: 1387386 Overload protection of transistors INTERNATIONAL STANDARD ELECTRIC CORP 10 April 1973 [11 April 1972] 17123/73 Heading H3T [Also in Division H2] A protective arrangement A for a transistorized circuit B comprises a normally non- conducting transistor T1 whose base is connected to a resistor R1 through which flows the supply current to the circuit B, and two gates S1, S2 forming a bi-stable circuit with two outputs, which bi-stable circuit changes its state when the transistor is rendered conducting by the voltage arising across the resistor R1 when a current surge occurs, one bi-stable output disabling the protected circuit B and the other providing an alarm signal. The circuit B may be an amplifier with an input at I and controlling a relay C. The bi-stable circuit may comprise two DTL gates P1, P2 connected so as to cut off the supply to the first transistor of the amplifier in circuit B when the bi-stable circuit changes its state. The output S2 from the gate P2 provides the alarm signal and the gate P1 is connected to the input I so that a short pulse applied to the input may restore the bi-stable circuit to its initial condition and render the amplifier operative. Fig. 2 (not shown) illustrates an arrangement in which the amplifier includes a Darling- ton pair and the load is a winding of a cross-bar switch.
Patent GB-881697-A (GB)
Title: Improvements in writing pads or tablets
Inventor: ROGERS IVOR JOHN
IPC: B43L1/12
Filed: 1959-05-20
Abstract: 881,697. Writing tablets. NORTHWICK TRADING CO. Ltd., and MARION & FOULDER (1933) Ltd. March 16, 1960 [May 20, 1959], No. 17178/59. Class 146(2) A writing tablet of the type having a plate 9 covered with a dark adhesive layer and a semitransparent sheet also covered by a further transparent protective sheet has a case folded on a line 7 to provide two halves, which are embossed at 4, 5 to form flat marginal edges 8. The usual opening 3 is provided. The plate 9 and associated sheets 10 are placed in the recess 5 together with a strip 11 designed to separate the sheets. The halves are folded about the line 7 and the margins 8 together with the ends of the strip 11 are secured together by adhesive. The margins are subsequently trimmed and if desired suitably coloured.
Patent GB-946238-A (GB)
Title: Improvements in or relating to dry shaving apparatus
IPC: B26B19/38
Filed: 1960-05-16
Abstract: 946,238. Dry shavers. PHILIPS ELECTRICAL INDUSTRIES Ltd. May 16, 1960 [May 19, 1959], No. 17208/60. Heading B4B. A detachable shaving head 2 of a dry shaver is secured to the casing 1 by engagement of one end of a cantilever spring 9, 10 in a slot 5 in a stud 4 provided on the head, the other end of the spring being secured to the casing. As shown, the head has two apertured shear plates 3, drive shafts 8 for co-operating rotatable cutting members passing through a cut hair chamber 6 into which the studs 4 project and which has openable flaps 22 for hand manipulation of the free ends 20, 21 of the springs into and out of the inwardly facing slots 5. The springs may be wire or leaf springs and the ends 11, 12 of the springs are secured by screws 13, 14 to the base 7 of the cut hair chamber.
Patent GB-983730-A (GB)
Title: Carburettor
IPC: F02M7/17
Filed: 1963-05-01
Abstract: 983,730. Spray carburetters. BENDIX CORPORATION. May 1, 1963 [June 4, 1962], No. 17212/63. Heading F1B. In a constant-suction type carburetter with a suction-actuated sliding piston choke valve 26, Fig. 1, a suction-actuated air-bleed device 34 reduces the suction acting in chamber 23 at certain operating conditions to produce enrichment of the mixture. In Fig. 1 the device 34 includes a suction-actuated piston 41 with a recess 42 which connects the bleed port 37 into chamber 23 to an atmospheric port at high power outputs when the intake manifold suction is low. The reduction in suction in chamber 23 causes lowering of the piston 26 which increases the suction on the fuel orifice 18 to enrich the mixture. At part-throttle conditions when the intake manifold suction is high, the piston 41 is pulled down to close the port 37 and the piston 26 returns to its normal position. In a modification, Fig. 4, a suction actuated piston 77 is surrounded by a sleeve 66 rotatable by a thermostat 76 responsive to engine temperature, the amount of air bled into the suction chamber 23 being controlled by co-operation of a slit 82 in the piston with a slot 73 in the sleeve. At cold starting the piston 77 is raised and sleeve 66 is rotated so that the slit 82 engages the widest part of slot 73 to obtain maximum enrichment. When the engine fires, the manifold suction lowers piston 77 to move slit 82 partly out of register with slot 73 so that less air is bled into chamber 23 to reduce the enrichment. As the engine temperature increases, the sleeve 66 is rotated until the slot 73 is out of register with slit 82 and the air bleed is closed. In a further modification the air bleed is controlled by a needle valve which is actuated jointly by a suction-actuated piston and manual or temperature responsive means.
Patent GB-1535858-A (GB)
Title: Magnetic bubble display system
IPC: G09G3/00
Filed: 1976-04-28
Abstract: 1535858 Controlling light INTERNATIONAL BUSINESS MACHINES CORP 28 April 1976 [9 May 1975] 17233/76 Addition to 1535370 Heading G2F The arrangement of the Parent Specification is used with incident circularly polarized light e.g. linearly polarized light on a quarter wave plate, so that output light is phase modulated. A further quarter wave plate may produce a phase modulation image in linearly polarized light which is used as the input to a second arrangement as described in the Parent Specification, the two arrangements being in a common stack, the second arrangement providing modulation of the polarization direction of the linearly polarized light, for final intensity modulation via an analyzer or holographic system. In addition to the uses mentioned in the Parent, the production of kineform lenses is referred to.
Patent GB-129675-A (GB)
Title: Improvements in or relating to Propelling Means for War Rockets or the like and the Method of Manufacturing the same.
Inventor: ROBERT PHILIPPE
IPC: F42B15/00
Filed: 1917-11-22
Abstract: 129,675. Robert, P. March 3, 1916, [Convention date]. Ordnance, war-rocket. -Consists mainly in providing adjustable spring grippers for delaying the discharge of the projectile. As shown, the apparatus comprises a discharging tube 4, Fig. 1, with legs 7 secured to a guide frame 6. The tube 4 contains the rocket-propelling charge, which is ignited by a fuse or priming 5. A rib 3 on the projectile 1 passes between the legs 7 of the tube 4 and carries springs 8, Fig. 9, which are gripped by adjustable screws 10. Several propelling- charges may be used side by side, and they may be arranged at a small angle to the axis in order to impart rotation to the rocket.
Patent GB-839769-A (GB)
Title: Improvements in glass articles
IPC: C03C3/21
Filed: 1956-06-04
Abstract: A glassy article comprises a microscopically porous vitrified glassy structure at least 90 cationic mol. per cent. of which consists of a combination of inorganic constituents of the composition set forth in the following table, in which the amounts are specified as cationic molar percentages:- .TiO2.0-40 .ZrO2.0-35 .HfO2.0-35 .TiO2 + ZrO2 + HfO2.10-40 .SiO2.0-40 .AlO1,5.0-10 .BO1,5.0-25 .PO2,5.20-70 .PO2,5 + BO1,5.20-75 .Fluxes.0-15 .BO1,5 + Fluxes.0,25 the fluxes being selected from the alkali and alkaline earth oxides; the structure having a maximum ion exchange capacity, as determined by the test described herein, greater than 2 milliequivalents per gram.  Such articles can function as ion exchangers under extremes of temperature, pH, and radiative conditions and are resistant to oxidative influences and to attack by strong acid solutions.  Thus they may be used, in an ion exchange application, to decontaminate strongly-oxidising, chromium-plating-bath solutions.  They are mechanically strong, crack-resistant, and are structurally stable under extremes of temperature up to approximately 400 DEG C. and down to liquid air temperatures.  Ionizing radiation does not cause a drop in their ion exchange capacity nor a significant degradation of their structure.  They may be used in the removal of radioactive ions such as caesium and strontium from solutions of low pH at high temperatures of say, 250 DEG C. and under several thousand pounds of pressure.  In addition, however, they are useful in chemical processes generally, e.g. as adsorbents or catalysts.  Catalytic agents may be attached by ion exchange or adsorption and the resulting adsorbed ions reduced, in situ, if desired.
Patent GB-642361-A (GB)
Title: Improvements in and relating to the manufacture of electric dry batteries
IPC: B30B9/00
Filed: 1945-07-06
Abstract: 642,361. Batteries. BURNDEPT, Ltd., and RICHARDSON, R. P. July 6, 1945, No. 17327. [Class 53] An apparatus for pressing absorbent linings into shallow electrode cups 46 of dry batteries comprises a platform 45 for receiving the cups which are delivered down a shoot 44 to a rotatable table 21 which carries the cups beneath a reciprocating plunger which presses the linings into the cups. The table is provided with a ring of pins 41 or recesses or other means to locate the cups and above each cup is a die 42 having an opening in it corresponding in size and shape to the mouth of the electrode cup and having grooves 43 at its corners as shown in Fig. 3. The grooves are of diminishing depth outwards to prevent the edges of the paper linings when pressed into the cups from gaping inwards and coming away from the cups. A press 34 operated from an eccentric 36 has a plunger 35 which reciprocates above the edge of the table and carries a tool 37 for pressing the linings into the cups and an indexing pin 38 which enters holes 39 in the table. The table is rotated by a motor 27 which rotates a shaft 28 carrying a drum 31 which carries a bent member 32 engaging pins 33 on the under surface of the table. As the cups are delivered to the table an operator places in each cup a sheet of absorbent paper which is of the same size as the bottom of the cup and is made by stamping from a starchcoated paper strip. Other operators place on each die 42 an absorbent lining sheet 47 as shown in Fig. 4. Each of these sheets is of sufficient size to cover the bottom and sides of a cup and serves to insulate one .cup from an adjacent one in addition to absorbing electrolyte. As each cup comes beneath the press 34 the sheet 47 is forced through the die 42 into the cup, the grooves 43 in the die causing pleats to form in the corners of the sheet. The lined cups are ejected by air pressure supplied through a nozzle 48. Specification 579,986 is referred to.
Patent GB-1143486-A (GB)
Title: Terpolymers and their use in photographic materials
IPC: G03C1/76
Filed: 1966-04-21
Abstract: 1,143,486. Sulphobetaines. EASTMAN KODAK CO. 21 April, 1966 [21 April, 1965], No. 17442/66. Heading C2C. [Also in Divisions C3 and G2] Polymerizable sulphobetaine-esters of the formula wherein R, R 2  and R 3  are each H or alkyl, and R 1  and R 4  are divalent saturated aliphatic hydrocarbon groups, are prepared by reacting an aminoalkyl ester of acrylic or alkacrylic acid with an appropriate sultone, preferably in an organic solvent at temperatures up to 100‹ C. In Examples (1) dimethylaminoethyl methacrylate and 1,3-propane sultone, (4) dimethylaminoethyl methacrylate and 1,4-butane sultone and (5) t-butylaminoethyl methacrylate and 1,3- propane sultone are reacted.
Patent GB-568832-A (GB)
Title: Improvements in and relating to joints of binding straps for packages or the like
IPC: B65B13/34
Filed: 1943-10-23
Abstract: 568,832. Strap strainers. GILLMAN, W. C., HALL & GILLMAN, Ltd., and PACKERS SUPPLY CO., Ltd.. Oct. 23, 1943, No. 17485. [Class 45] [Also in Group XV] A device for tensioning a metal binding-strap 1, 2 around a package comprises an anvil 18 carried by a lever 16 co-operating with a jaw 17 pivoted to the lever; spring-actuated retaining . pawls 13, 14 being provided to prevent retrograde movement of the ends of the strap.